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(No Model.)

B. M. PINE FLASH LIGHT FOR PHOTOGRAPHY.

Patented Nov. 3, 1891.

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EDIVARD M. PINE, OF \VASIIINGTON, DISTRICT'OF COLUMBIA.

FLASH-LIGHT FOR PHOTOGRAPHY.

SPECIFICATION forming part of Letters Patent No. 462,507, datedNovember" 3, 1891.

Application filed February 19, 1891. Serial No. 382,087. (No model) ToaZZ whom it may concern:

Be it known that I, EDWARD M. PINE, a citizen of the United States,residing in the city of lVashington, District of Columbia, have inventedcertain Improvements in Flashlights for Photography; and I do herebydeclare that the following is a full, clear, and exact description ofthe invention, such as will enable others skilled in the artto which itappertains to make and use the same.

My invention relates to flash-lights for photography; and it consists inimprovements and combinations hereinafter fully set forth.

The invention is intended to produce aflash of light of great temporarypower or luminosity for photographic purposes.

In the use of magnesium powder usually employed for the purpose ofproducing a flash-light it has hitherto been deemed essential to mixwith it an oxidizing material thereby making an explosive mixture whichupon explosion operates to disseminate the magnesium powder, and thussecure the desired temporary luminosity.

My invention is designed to obtain a iuminous flash without the dangerand inconvenience of an explosionand in the most convenient andeconomical manner simply by the use of magnesium powder unmixed withother material.

In the drawings forming a part of this specification, Figure 1 is aperspective of my improved apparatus assembled for use. Fi g. 2 is asection through the same. Fig. 3 is a side elevation of the magazinewith the primary igniting device or burner removed, and

Fig. at is a section of the burner detached from the nn'tgazine.

A is the magazine or holder for the magnesium powder. It consists of anangular or bent tube, as shown. and has connected with one branch a hoseor flexible tube c, communicating with means of producing a blastthrough the magazine, as a bulb to. For convenience in supporting andadjusting the magazine, I attach a socket (t to the side thereof, andalso for supporting a reflector I attach a clamp or holder a",conveniently made of wire bent to the form shown. This It consists of acup-shaped part and a central tubular part b, the latter having acontracted mouth or orifice Z). A suitable wick b is adjusted within thecup around the central part Z), to be saturated with any suitableinflammable substance, as alcohol or other volatile hydrocarbon.

O is a cover or lid for extinguishing the flame and for inclosing thewick when not in use. i

In operation the wick, saturated with combustible liquid, is ignited. Acharge of magnesium powder being placed in the magazinechamber, the bulbis compressed, and the powder, blown from its magazine or chamberthrough elongated contracted nozzle 1), scattered, and ignited by theannular flame from the wick, producing a highly-luminous flash.

It should be observed that the elongated narrow throat 1) serves tobring the powder to a wide thin stream, so that its maximum effect isproduced, and that the detachability of the burner part is important inorder to aiford the greatest facility for charging the magazine withpowder.

Having now described my invention, what I claim is 1. In a flash-lightapparatus, the combination of a magazine or powder holder and adetachable burner or ignitor having a central passage provided with anelongated narrow throat, substantially as described.

2. In a flash-light apparatus, the combina tion of a pomler-holder, adetachable burner or iguitor having a passage through a priming origniting flame and means for blowing the powder from its receptaclethrough the flame, substantially as described.

3. In a flash-light apparatus, the combination of a detachable burner orignitor provided with a central tubular part having a narrow elongatedthroat-passage for the flashpowder, a suitable pmvder-receptacleconnected through the medium of said tubular part with said burner, anda blasting attachment for blowing the flash-powder through thepriming-flame, substantially as described.

In testimony whereof I affix my signature in the presence of twowitnesses.

- EDWARD M. PINE.

Witnesses:

A. F. RANDALL, ENOCH MARIs.

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